Mueller Sport Dot series scopes are used primarily for the big game hunter and built to withstand the larger caliber recoils of today's new hunting rifles. Euro Coated: Fully Multi-Coated camera quality crystal lenses for superior brightness and contrast (green coating). All weather high-torque power change ring 1/8 fine-tune, windage and elevation adjustments with audible click stops and easy fingertip turrets (no tools required). 11 dot brightness intensity settings. Big diameter ocular lens for wider field of view.